Pith Number

pith:CGH4LPKM

pith:2005:CGH4LPKM2Z62WGMVYMRQPGKN4Q

not attested not anchored not stored refs pending

The Dusty Disk of the Early Galaxy NGC 3656

(2) USRA-SOFIA [USA], (3) Caltech-JPL [USA], (4) NRC-HIA [Canada]), C. Darren Dowell (3), Henry E. Matthews (4) ((1) University of Chicago [USA], Jacqueline Davidson (2), Lerothodi L. Leeuw (1), Roger H. Hildebrand (1)

arxiv:astro-ph/0510143 v1 · 2005-10-05 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CGH4LPKM2Z62WGMVYMRQPGKN4Q}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:40:33.305787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

118fc5bd4cd67dab1995c32307994de41fe351ac8e5b28bc72021fcbe1993578

Aliases

arxiv: astro-ph/0510143 · arxiv_version: astro-ph/0510143v1 · doi: 10.48550/arxiv.astro-ph/0510143 · pith_short_12: CGH4LPKM2Z62 · pith_short_16: CGH4LPKM2Z62WGMV · pith_short_8: CGH4LPKM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CGH4LPKM2Z62WGMVYMRQPGKN4Q \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 118fc5bd4cd67dab1995c32307994de41fe351ac8e5b28bc72021fcbe1993578

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9541ffc5bcda069fd140874b2b1700feabe96af79cfc041cf5e7eac32d9b5bfa",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-10-05T18:55:48Z",
    "title_canon_sha256": "15b8de2290e55b8faacf6080e12618a224538f33e6646c5828356d42e703e150"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0510143",
    "kind": "arxiv",
    "version": 1
  }
}